Denton County Sheriff Tracy Murphree lit a social media firestorm Tuesday after posting a Facebook response to Monday's deadly bombing in Manchester, England.

In the post, which Murphree wrote Monday night, he warns against "Islamic Jihadists" who "want to kill you." He also warned against potential terrorist attacks in Denton County, though he said Tuesday he didn't have evidence of any recent terrorist threats in the area.

The Islamic State extremist group claimed responsibility for the attack that left 22 people dead and dozens more wounded Monday at a pop concert in Manchester Arena. By Tuesday afternoon, the terrorist threat level in Britain rose to its highest level, indicating another attack could be imminent.

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